Color: Black Brand: WESTGO Material: high quality polycarbonate material Style: Modern Features: WESTGO Photochromic Progressive Eyeglasses features a fully impregnated quick tint transition to a dark category 3 tint within 3 seconds in bright sunlight conditions while transitioning back to clear within 90 secs when going back indoors. Lenses are coated with HEV Blue Light protective coating on the outside with Anti-reflective coating on the inside.
